JP4611239B2 - Antenna mounting structure and portable radio - Google Patents

Description

  The present invention relates to an antenna mounting structure in a mobile phone or the like and a portable radio device such as a mobile phone.

The number of portable wireless devices such as mobile phones and PDAs that incorporate an antenna in a housing is increasing in consideration of external design. As a means for incorporating the antenna in the casing, for example, as shown in Patent Document 1, a sheet metal antenna element is attached to the inner wall of the casing, and the antenna and the circuit board are electrically connected.
JP-A-10-190512

  However, when attaching the antenna to the inner wall of the housing, there is a problem that it is difficult to attach the antenna accurately at a predetermined position. Therefore, it takes time to assemble not only at the time of manufacturing but also at the time of maintenance, and it has been difficult to improve workability.

  An object of the present invention is to provide an antenna mounting structure and a portable wireless device in which an antenna can be easily attached and detached.

  An antenna mounting structure according to a first aspect of the present invention has an L-shaped cross section orthogonal to each other between a case wall provided in a case and a rib provided in the case and facing the case wall. An antenna member having a first wall portion and a second wall portion, and having an antenna element on at least the first wall portion, wherein the first wall portion faces the case wall portion. Inserted from the second wall side, provided in the case, and inserted into a hole provided in the second wall portion through a rod-like portion parallel to the case wall portion, and a support portion provided in the case To support the surface of the second wall portion opposite to the extending direction of the rod-shaped portion at a position closer to the first wall portion than the rod-shaped portion, and the engagement provided on the rib The rod is attached to the engaged portion provided at the end of the second wall opposite to the first wall. An antenna mounting structure for engaging the antenna member on the opposite side of the extending direction of the portion to prevent the second wall portion from coming off from the rod-shaped portion, and attaching the antenna member to the case. , Between the engagement portion and the edge of the first wall portion opposite to the second wall portion, between the rod-like portion and the rib, and the first wall portion. The wall portion and the second wall portion are configured to be rotatable around a predetermined axis parallel to the intersecting line, and form the first fulcrum from the rod-shaped portion to the rib to form the first fulcrum. A first abutting portion that abuts, and a second abutting portion that abuts against the case in the direction from the distal end side to the root side with respect to the case so as to form a second fulcrum.

  Preferably, the first contact portion is a projecting support portion formed on an inner angle side of the first wall portion and the second wall portion, and the projecting support portion is the rod-shaped portion with respect to the rib. The first fulcrum is constituted by at least one of the edge of the projecting support and the edge of the rib.

  Preferably, the second abutting portion extends from an end in the intersecting line direction of at least one of the first wall portion and the second wall portion, and the second abutting portion is more than the second wall portion. An extension portion positioned on the edge side of the wall portion of the first wall portion, and the case has an extension of the rod-like portion between the case wall portion of the case and the rib rather than the second wall portion. Protruding portions for extending portions projecting in the extending direction are provided, and the extending portions abut against the protruding portions for extending portions in a direction perpendicular to the rod-shaped portion, and are formed by edges of the extending portions. The second fulcrum is configured.

  Preferably, the hole portion is provided adjacent to the first wall portion, and a portion of the hole portion on the first wall portion side is formed by a groove portion formed in the first wall portion. Has been.

  A portable wireless device according to a second aspect of the present invention is orthogonal to each other between a case wall portion provided in a first case and a rib provided in the first case and facing the case wall portion. An antenna member having a first wall portion and a second wall portion having an L-shaped cross section, and having an antenna element on at least the first wall portion, and the first wall portion facing the case wall portion So that the case is inserted from the second wall side, a rod-like portion provided in the first case and parallel to the case wall portion is inserted into a hole provided in the second wall portion, and the case The support portion provided on the second wall portion supports a surface opposite to the extending direction of the rod-shaped portion at a position closer to the first wall portion than the rod-shaped portion, and the rib The engaging portion provided on the engaged portion provided on the end portion of the second wall portion opposite to the first wall portion. The antenna member inserted between the case wall portion and the rib to prevent the second wall portion from coming off from the rod-like portion by engaging in the opposite direction to the extending direction of the rod-like portion. A portable wireless device that covers the second case and combines the first case and the second case to form a housing, wherein the first case includes the first wall of the second wall portion. A first support projection that can support a portion that does not intersect the wall portion is provided, and the second case is provided with a second support projection that protrudes toward the first case, and the first case By coupling the second case, the first wall portion is sandwiched between the support portion and the second case, and the second wall portion is supported by the first support protrusion and the second support. It is pinched by the protrusion.

  A portable wireless device according to a third aspect of the present invention is orthogonal to each other between a case wall provided in a first case and a rib provided in the first case and facing the case wall. An antenna member having a first wall portion and a second wall portion having an L-shaped cross section, and having an antenna element on at least the first wall portion, and the first wall portion facing the case wall portion So that the case is inserted from the second wall side, a rod-like portion provided in the first case and parallel to the case wall portion is inserted into a hole provided in the second wall portion, and the case The support portion provided on the second wall portion supports a surface opposite to the extending direction of the rod-shaped portion at a position closer to the first wall portion than the rod-shaped portion, and the rib The engaging portion provided on the engaged portion provided on the end portion of the second wall portion opposite to the first wall portion. The antenna member inserted between the case wall portion and the rib to prevent the second wall portion from coming off from the rod-like portion by engaging in the opposite direction to the extending direction of the rod-like portion. A portable wireless device that covers the second case and combines the first case and the second case to form a housing, wherein the antenna member includes the first wall portion and the second wall. An extending portion that extends from the end in the intersecting line direction of at least one of the portions toward the rib side with respect to the first wall portion, and connects the first case and the second case. Thus, the first wall portion is sandwiched between the support portion and the second case, and the extension portion is sandwiched between the first case and the second case.

  Preferably, the opposing surface portion of the first case that faces the second wall portion is located between the case wall portion and the rib, and is engaged with the engagement when viewed from the second case. An opening is formed at a position overlapping with the portion, and at least one of the facing surface portion and the second wall portion is surrounded by the facing surface portion, the second wall portion, the case wall portion, and the rib, A shielding rib for closing the space including the opening is provided.

  According to the present invention, an antenna can be easily attached and detached, and a portable wireless device excellent in assemblability can be provided.

(First embodiment)
FIG. 1 is a perspective view showing the appearance of the mobile phone 1 according to the first embodiment of the present invention in an open state. The mobile phone 1 is configured as a so-called foldable mobile phone, and includes a reception case 2 and a transmission case 3 that are rotatably connected to each other between an open state and a closed state.

  The receiving case 2 and the transmitting case 3 are connected to each other by a connecting portion 4 that is the center of rotation, thereby constituting the entire case of the mobile phone 1. The receiving housing 2 and the transmitting housing 3 are each formed in a substantially thin rectangular parallelepiped shape, and are overlapped with each other in the closed state so that their contours substantially coincide with each other.

  For example, a speaker 107 for calling (see FIG. 11), a speaker 109 for notification (see FIG. 11), and images and characters are displayed on the front surface (front side of the paper) of the receiving housing 2. A main display unit 6 for displaying, a sub display unit 110 (see FIG. 11) for displaying images and characters on the back surface thereof, and a camera module 111 (see FIG. 11) are provided. The transmitter case 3 is provided with, for example, a microphone 108 for communication (see FIG. 11), an antenna member 26 for communication (see FIG. 2), and an operation unit 7 that receives user operations.

  The connecting portion 4 is configured by fitting a convex portion 9 formed at the end of the receiving housing 2 into a concave portion 10 formed at the end of the transmitting housing 3. A shaft member made up of a cylindrical body and a hinge unit (not shown) is inserted in the width direction of the mobile phone 1 (left and right direction in FIG. 1) on the surfaces of the concave portion 10 and the convex portion 9 that slide with each other. The receiving case 2 and the transmitting case 3 rotate as a rotation axis. Further, a signal line connecting the electronic circuit of the receiving housing 2 and the electronic circuit of the transmitting housing 3 is inserted through the cylindrical body.

  FIG. 2A is an exploded perspective view of the transmission case 3, and FIG. 2B is an external perspective view of the transmission case 3. Both are views of the transmitting housing 3 as viewed from the surface opposite to the surface (front) facing the receiving housing 2 in the closed state (the back side, the back side in FIG. 1).

  The transmitter case 3 includes a front case 21 on the side facing the receiver case 2 in the closed state, a rear case 22 on the back side, and a lid 23 that covers the back side of the rear case 22. . The front case 21, the rear case 22, and the lid body 23 are made of, for example, non-conductive resin, and are stacked on each other.

  Between the front case 21 and the rear case 22, a substrate 25 on which various electronic circuits such as a high-frequency circuit are formed, and an antenna member 26 connected to the substrate 25 for transmitting and receiving radio waves for wireless communication, Is stored. The substrate 25 is a printed wiring board based on, for example, a resin, and faces the inner surface of the rear case 22. Although not shown, between the board 25 and the front case 21, for example, a shield case for shielding the board 25, an FPC provided with a switch corresponding to a key of the operation unit 7, and a key of the operation unit 7 are provided. The key sheets are stacked. A battery (not shown) is accommodated between the rear case 22 and the lid body 23.

  FIG. 3 is a diagram for explaining an outline of a method of attaching the antenna member 26 to the rear case 22. FIG. 3A shows a state before the antenna member 26 is attached to the rear case 22. These show the state where the antenna member 26 is attached to the rear case 22.

  The rear case 22 is continuous with the back surface portion 31 constituting the back surface of the transmitter case 3 and the edge of the back surface portion 31 opposite to the connecting portion 4, and constitutes the outer peripheral surface of the transmitter case 3. It has an end wall portion 32 and a rib 33 that faces the end wall portion 32, and the rear portion 31, the end wall portion 32, and the rib 33 form a concave storage space 34 that stores the antenna member 26. ing. In addition, since the ridge part of the back surface part 31 and the edge part wall part 32 is chamfered in the curved surface shape, it can also be grasped | ascertained that the concave storage space is formed by the curved edge part wall surface and the rib.

  The antenna member 26 is inserted into the storage space 34 and temporarily fixed by appropriate means described later. Then, as shown in FIG. 2, the board | substrate 25 is laminated | stacked on the antenna member 26, and it fixes finally by fixing the front case 21 and the rear case 22 mutually.

  FIG. 4 is a conceptual diagram illustrating a method for temporarily fixing the antenna member 26 to the rear case 22.

  The antenna member 26 includes a first wall portion 41 and a second wall portion 42 that are orthogonal to each other and have an L-shaped cross section. The second wall portion 42 is provided with a hole portion 43 (not shown in FIG. 4, see FIG. 5). On the other hand, the rear case 22 extends from the back surface portion 31 to the front case 21 side (upper side in the drawing) in parallel with the end wall portion 32 and the rib 33 and can be inserted into the hole portion 43 of the second wall portion 42. 44 is provided. The antenna member 26 is inserted into the storage space 34 from the second wall portion 42 side with the first wall portion 41 facing the end wall portion 32, and the rod-shaped portion 44 is inserted into the hole portion 43 of the second wall portion 42. Is done. Thereby, the antenna member 26 is positioned in a direction parallel to the back surface portion 31 (left and right direction in the drawing).

  The rear case 22 is provided with a support portion 45 adjacent to the end wall portion 32. The support portion 45 is configured by a step portion protruding from the end wall portion 32 toward the rib 33 side. The support portion 45 supports the lower surface (the surface on the back surface portion 31 side) of the second wall portion 42 on the first wall portion 41 side. Accordingly, the antenna member 26 is positioned at a predetermined position in the insertion direction into the storage space 34.

  In addition, the support part 45 can also be comprised without forming a level | step-difference part. That is, even if the step portion is not formed, if the second wall portion 42 comes into contact with the curved portion on the back surface portion 31 side of the end wall portion 32, the position is the support portion. Further, when the end wall portion 32 is not chamfered and the second wall portion 42 abuts on the back surface portion 31, the position is the support portion.

  An engaging portion 46 is formed on the rib 33. The engaging portion 46 is engaged with the engaged portion 48 provided at the end of the second wall portion 42 opposite to the first wall portion 41 in the direction opposite to the extending direction of the rod-shaped portion 44. Yes. This prevents the second wall portion 42 from coming off from the rod-shaped portion 44.

  As can be understood from FIG. 4, the edge of the second wall portion 42 can function as an engaged portion, and the engaged portion 48 may not be provided with a special shape. .

  Hereinafter, the specific structure of the antenna member 26 and the rear case 22 including the structure for performing such temporary fixing will be described.

  FIG. 5 is an external perspective view of the antenna member, FIG. 5A is a perspective view of the rear case 22 as viewed from the back surface 31 side and the rib 33 side, and FIG. 5B is a rear case 22. FIG. 5C is a perspective view seen from the back case 31 side and the end wall 32 side, and FIG. 5C is a perspective view seen from the front case 21 side and the rib 33 side.

  The antenna member 26 includes an antenna base 51, an antenna element 52 provided on the antenna base 51, and a power feeding portion 53 to the antenna element 52.

  The antenna base 51 is integrally formed of, for example, a nonconductive resin. The antenna base 51 has the first wall portion 41 and the second wall portion 42 described above, and as a whole, is long and long in the direction in which the intersecting line (ridge portion) of the first wall portion 41 and the second wall portion 42 extends. It is formed in a shape.

  The second wall portion 42 is formed with stepped portions 55 so as to be displaced toward the front case 21 at both ends in the longitudinal direction of the antenna member 26. In the step part 55, the 2nd wall part 42 is thick and the plate | board thickness part is formed. As for the increase in the plate thickness of the stepped portion 55, a projecting support portion that supports the second wall portion 42 with respect to the first wall portion 41 is formed on the inner corner side of the second wall portion 42 and the first wall portion 41. It can also be seen as being. In addition, although the level | step-difference part 55 of this embodiment can also be caught as a part different from the 2nd wall part 42, or a part of extension part 56 mentioned later, in description of this embodiment, for convenience of explanation. This will be described as a part of the second wall portion 42.

  In the first wall portion 41, extending portions 56 that extend further to the both ends in the longitudinal direction than the stepped portion 55 are provided on both ends in the longitudinal direction of the antenna member 26. In addition, although the extension part 56 of this embodiment can also be regarded as a part of the 1st wall part 41, it can also be regarded as what is extended from the edge part of the 1st wall part 41, For convenience, in the description of the present embodiment, it is assumed that the first wall 41 extends from the end.

  The extending portion 56 is provided so as to be bent gradually from the end portion of the first wall portion 41 toward the rib 33. The extending portion 56 extends from a predetermined range (for example, half the height of the first wall portion 41) opposite to the second wall portion 42 in the height direction of the first wall portion 41 (up and down direction in the drawing). ing. When the antenna member 26 is housed in the housing space 34, the surface on the second wall 42 side of the extending portion 56 is formed on a part of the end portion side of the rib 33 and the rib 33 as shown in FIG. 3. It abuts on the edge of the continuous semicircular rib 35 (hatching region R1 in FIG. 3A).

  As shown in FIG. 3A, the rod-shaped portion 44 described above projects from the inner surface of the ridge portion between the back surface portion 31 and the end wall portion 32 toward the front case 21 in parallel with the end wall portion 32 and the rib 33. Is provided. For example, two rod-shaped portions 44 are arranged in the width direction of the rear case 22.

  On the other hand, as shown in FIG. 5, the hole portion 43 through which the rod-like portion 44 is inserted is located near the first wall portion 41 of the second wall portion 42 and at a position closer to the center than the step portion 55. Two antenna members 26 are provided in the longitudinal direction. A part of the hole 43 on the first wall 41 side is constituted by a groove 58 formed in the first wall 41. The groove portion 58 is formed along the insertion direction of the rod-shaped portion 44 from the hole portion 43 to the end portion of the first wall portion 41 opposite to the second wall portion 42.

  As shown in FIG. 3A, the support portion 45 described above is configured by forming a stepped portion that protrudes toward the rib 33 on the inner surface of the end wall portion 32. The support 45 supports the ridges of the first wall 41 and the second wall 42.

  As shown in FIG. 5, the engaged portion 48 described above protrudes toward the rib 33 at the step portion 55 at the ridge portion between the surface on the back surface 31 side of the rear case 22 and the surface on the rib 33 side. It is provided as follows. On the other hand, as shown in FIG. 3A, the engaging portion 46 with which the engaged portion 48 engages is formed on the surface of the rib 33 that faces the end wall portion 32, and the edge of the rib 33 from the back surface portion 31. By forming a groove portion extending toward the portion side, the groove portion is formed in the vicinity of the edge portion of the rib 33.

  As shown in FIG. 5, the antenna element 52 is made of, for example, a sheet metal and is attached to the antenna base 51 in a predetermined pattern. Specifically, of the first wall portion 41, the facing surface to the end wall portion 32, the extending portion 56, the facing surface to the side surface of the end wall portion 32 or the rear case 22, and the second wall portion 42. It extends continuously over the surface facing the back surface portion 31.

  The power feeding portion 53 is formed of a sheet metal continuous to one end of the antenna element 52, and the inner wall side of the first wall portion 41 and the second wall portion 42 through a notch portion formed in the second wall portion 42. And constitutes a spring contact. The power feeding unit 53 abuts on a power feeding terminal 28 (see FIG. 2A) provided on the substrate 25.

  A method for attaching and detaching the antenna member 26 having the above configuration will be described.

  6 is a plan view showing the rear case 22 and the antenna member 26, FIG. 7 is a diagram for explaining a procedure for temporarily fixing the antenna member 26 to the rear case 22, and FIG. It is a figure explaining the procedure which removes the antenna member 26 temporarily fixed. However, FIGS. 8A and 8B also show a temporarily fixed end state (end state of the procedure of FIG. 7).

  First, a procedure for temporarily fixing the antenna member 26 to the rear case 22 will be described.

  7A to 7D show an initial stage of attaching the antenna member 26 to the rear case 22, and FIG. 7A is a cross-sectional view taken along the line AA in FIG. (B) is sectional drawing in the BB line of FIG. 6, FIG.7 (c) is a perspective view, FIG.7 (d) is a side view.

  At this stage, as shown in FIG. 7B, the rod-shaped portion 44 is inserted into the hole portion 43, and the ridge portion between the second wall portion 42 and the first wall portion 41 is in contact with the support portion 45. As shown in FIG. 7A, the engaged portion 48 and the engaging portion 46 are not engaged. Further, as shown in FIG. 7C and FIG. 7D, the extension portion 56 abuts on the edge of the end wall portion 32 in the vicinity of the boundary between the extension portion 56 and the first wall portion 41, A fulcrum P1 for rotating the antenna member 26 clockwise in the drawing is configured.

  A step is formed at the edge portion of the end wall portion 32, and the end wall portion 32 is located on the inner side of the rear case 22 than the outer edge portion 32 a and the outer edge portion 32 a than the outer edge portion 32 a. And an inner edge portion 32b protruding toward the front case 21 side. The outer edge 32 a faces the edge of the front case 21, and the inner edge 32 b fits into the front case 21. The fulcrum P <b> 1 is configured by a contact portion between the inner edge portion 32 b and the extension portion 56.

  FIGS. 7 (e) to 7 (h) show a stage subsequent to FIGS. 7 (a) to 7 (d), and FIG. 7 (e) is a cross-sectional view taken along line AA in FIG. 7 (f) is a cross-sectional view taken along line BB in FIG. 6, FIG. 7 (g) is a perspective view, and FIG. 7 (h) is a side view.

  When a force that rotates the antenna member 26 clockwise with the fulcrum P1 as a fulcrum is applied, as shown in FIG. 7 (e), the engaged portion 48 is closer to the paper surface than the engaging portion 46 of the rib 33. The upper side slides and moves to the lower side of the drawing, and the hole 43 is further inserted into the rod-like portion 44 as shown in FIG. At this time, the fulcrum of the antenna member 26 moves from the fulcrum P <b> 1 to the fulcrum P <b> 2 constituted by the contact portion between the extending portion 56 and the rib 35.

  FIGS. 8A and 8B show the final stage of the temporary fixing of the antenna member 26 to the rear case 22, which is a continuation stage of FIGS. 7E to 7H. 8A is a cross-sectional view taken along the line AA in FIG. 6, and FIG. 8B is a cross-sectional view taken along the line BB in FIG.

  As shown in FIG. 8A, the engaged portion 48 and the engaging portion 46 are engaged, and the rod-like portion 44 is inserted into the hole 43 as shown in FIG. And the second wall portion 42 are supported by the support portion 45. However, in this embodiment, the ridge portion between the first wall portion 41 and the second wall portion 42 contacts the support portion 45 from the position where the engaged portion 48 and the engaging portion 46 abut. The play is set so that it can be moved slightly to the contact position. In FIG. 8B, the ridge portion of the first wall portion 41 and the second wall portion 42 is lifted from the support portion 45 by the amount of the play. The state is illustrated.

  Next, a procedure for removing the temporarily fixed antenna member 26 will be described.

  8A and 8B, a force F1 is applied to the ribs 33 (to the right side of the drawing) on the edge 41a side of the first wall 41. As a result, the antenna member 26 rotates clockwise on the paper surface and is removed from the rear case 22. Specifically, it is as follows.

  As shown in FIG. 5 (a), a ridge 56a between the surface on the back surface 31 side (upper side of the paper surface) of the rear case 22 and the surface on the rib 33 side (front side of the paper surface) of the extended portion 56, and a step difference. A ridge 55a between the surface of the portion 55 on the front case 21 side (the lower side in the drawing) and the surface on the rib 33 side is disposed on the axis O1. The axis O1 is located closer to the rib 33 than the hole 43 (rod-like portion 44) in the direction perpendicular to the rod-like portion 44 (direction perpendicular to the first wall portion 41). Further, the axis O1 is opposite to the second wall portion 42 of the first wall portion 41 in the extending direction of the rod-shaped portion 44 and the distal end side (the lower side in the drawing) of the rod-shaped portion 44 with respect to the engaged portion 48. It is located at a position that does not exceed the side edge 41a.

  FIG.8 (c) is sectional drawing in the AA of FIG. Since the antenna member 26 is in contact with the rib 33 in the direction from the rod-shaped portion 44 to the rib 33 (to the right side of the drawing), the reaction force F2 against the force F1 to the right side of the drawing is applied from the surface of the rib 33 on the antenna member 26 side. receive. Of the contact surface between the rib 33 side surface of the antenna member 26 and the antenna member 26 side surface of the rib 33, the portion closest to the front case 21 (upper side in the drawing) is a ridge 55a. As described above, the position of the ridge 55 a (axis O <b> 1) is on the lower side of the page than the edge 41 a of the first wall portion 41. In other words, it is on the lower side of the page than the point where the force F1 is applied.

  Accordingly, a clockwise moment is generated by the force F1 and the reaction force F2, and the antenna member 26 rotates with the contact portion between the ridge 55a and the surface of the rib 33 on the antenna member 26 side as the rotation fulcrum f1.

  FIG. 9 is a perspective view showing a process in the middle of removing the temporarily fixed antenna member 26 from the rear case 22. As shown in this figure, the antenna member 26 rotates around the rotation fulcrum f1 on the axis O1.

  As shown in FIG. 8C, the position of the ridge 55 a (axis O <b> 1) is located closer to the edge 41 a of the first wall portion 41 than the engaged portion 48. In other words, the point where the force F1 is applied and the engaged portion 48 are located on the opposite side across the rotation fulcrum f1. Accordingly, the engaged portion 48 is separated from the rib 33 by the clockwise rotation of the antenna member 26 around the rotation fulcrum f1. In other words, the engaged portion 48 moves in a direction to release the engagement with the engaging portion 46.

  Specifically, the ridge 55a abuts on a portion of the rib 33 in a range indicated by a hatching region R2 in FIG. Moreover, although the rotation fulcrum f1 was demonstrated as what is comprised by the edge part 55a and the surface by the side of the antenna member 26 of the rib 33, the position of the edge part 55a and the rib 33 are understood as FIG.8 (c). The edge 33a substantially coincides with the position of the edge 33a, and strictly speaking, the edge 33a may constitute the rotation fulcrum f1. That is, as described in the description of FIG. 8A and FIG. 8B, the antenna member 26 and the rib 33 can move by a predetermined margin, and the force when removing the antenna member 26 is increased. The antenna member 26 moves up and down slightly depending on the insertion. When the ridge 55a comes into contact with the surface of the rib 33 on the antenna member 26 side, the ridge 55a forms the rotation fulcrum f1, and the edge 33a of the rib 33 is the rib 33 side of the step 55. If it will be in the state contact | abutted to this surface, the rotation fulcrum f1 will be comprised by the edge part 33a.

  FIG. 8E is a cross-sectional view taken along the line CC in FIG. As described above, the antenna member 26 can be disengaged between the engaged portion 48 and the engaging portion 46 by rotating the antenna member 26 clockwise in FIG. If it is slipped off, it becomes difficult to pull out the antenna member 26 from the rod-shaped portion 44, and it becomes difficult to remove the antenna member 26.

  Here, as described above, the surface of the extended portion 56 on the back surface 31 side (the lower side in the drawing) of the rear case 22 is supported by the rib 35 of the rear case 22 in the direction from the root side to the tip side of the rod-shaped portion 44. Has been. That is, the antenna member 26 receives the reaction force F3 from the rear case 22. Further, in the antenna member 26, the portion closest to the rib 33 among the surfaces supported in the direction from the root side to the tip side of the rod-shaped portion 44 is the ridge portion 56 a.

  Accordingly, as shown in FIGS. 8 (e) and 9, the contact portion between the ridge 56a and the surface of the rib 35 on the antenna member 26 side is rotated by the clockwise moment generated on the antenna member 26. The antenna member 26 rotates so that the end wall portion 32 side (the left side in the drawing) is lifted as the fulcrum f2. That is, the anten member 26 does not slip down to the base side of the rod-shaped portion 44. The rotation fulcrum f2 is coaxial with the rotation fulcrum f1.

  Further, as shown in FIG. 8 (e), the position of the ridge 56a (axis O1) is on the rib 33 side (right side of the paper) with respect to the rod-like portion 44, so that the antenna member 26 is lifted on the left side of the paper. As a result, the rod-shaped portion 44 moves in the direction of being pulled out from the hole portion 43.

  FIG. 8D is a cross-sectional view taken along line BB in FIG. The rod-shaped portion 44 is finally pulled out of the hole 43 with elastic deformation around the hole 43 of the rod-shaped portion 44 and the second wall portion 42. However, since the antenna member 26 rotates so that the left side of the paper surface is lifted and the hole 43 moves to the tip side of the rod-shaped portion 44, the elastic deformation occurs, and therefore the amount of elastic deformation may be small. In other words, the antenna member 26 is removed from the rear case 22 with a low load.

  In the process of removing the antenna member 26 from the states of FIGS. 8A and 8B through the states of FIGS. 8C to 8E, the first wall portion of the antenna member 26 is removed. Clearance is provided between the members so that 41 does not contact the member on the end wall portion 32 side of the rear case 22 and the second wall portion 42 of the antenna member 26 does not contact the member on the rear surface portion 31 side of the rear case 22. It is preferable. Even if the first wall 41 and the second wall 42 abut against the rear case 22 to some extent, they can be removed by elastic deformation of the members.

  FIG. 10 is a view for explaining a method of finally fixing the antenna member 26 to the transmitter case 3 by fixing the front case 21 and the rear case 22 to each other after the antenna member 26 is temporarily fixed. 10 (a) is a plan view of the transmitter case 3, FIG. 10 (b) is a cross-sectional view in the direction of arrows Xb-Xb in FIG. 10 (a), and FIG. 10 (c) is a diagram. 10 (a) is a cross-sectional view taken along line Xc-Xc, FIG. 10 (d) is an enlarged view of region a in FIG. 10 (b), and FIG. 10 (e) is region b in FIG. 10 (c). FIG.

  As shown in FIG. 10E, the front case 21 and the rear case 22 are provided with a screw boss 27 (see also FIG. 2A) provided on the inner surface of the front case 21 on the inner surface of the rear case 22. The ribs 35 (see also FIG. 3A) are fitted and inserted to each other, and the screws 71 inserted through the rear case 22 are screwed into the screw bosses 27 to be fixed to each other. Thereafter, a lid 23 is attached to the rear case 22. As shown in FIG. 10 (d), the lid 23 is attached by engaging the engagement projections 73 provided on the lid 23 with the engagement holes 72 provided on the rear case 22. Etc.

  As shown in FIG. 5, the stepped portion 55 and the extending portion 56 are formed with a recess 75 that fits the screw boss 27. The hatched region R4 of the surface of the step portion 55 on the rear case 22 side is in contact with the hatched region R3 of FIG. The region R3 is provided on the front end surface of the protrusion 37 that protrudes from the rear case 22 to the front case 21 side. The tip surface of the protrusion 37 is a surface with which the tip surface of the screw boss 27 abuts. The region R3 constitutes a notch portion of the rib 35 that fits with the screw boss 27.

  As shown in FIG. 10E, the region R5 of the substrate 25 (see also the hatched region in FIG. 2) abuts on the surface of the stepped portion 55 opposite to the region R3 (front case 21 side). The substrate 25 abuts on a stepped portion 77 provided adjacent to the screw boss 27 in the front case 21. Accordingly, the stepped portion 55 is sandwiched between the region R3 on the inner surface of the rear case 22 and the stepped portion 77 of the front case 21 via the substrate 25.

  As shown in FIG. 4 and the like, the first wall portion 41 is supported by the support portion 45 of the rear case 22. In addition, as shown in FIG. 10E, the surface on the rear case 22 side of the extending portion 56 is supported by the rib 35. On the other hand, the front case 21 side surfaces of the first wall portion 41 and the extending portion 56 are flush with each other as shown in FIG. 5 and the like, and as shown in FIG. Abuts against the inner surface. Accordingly, the first wall portion 41 is sandwiched between the support portion 45 of the rear case 22 and the front case 21, and the extending portion 56 is sandwiched between the rib 35 of the rear case 22 and the front case 21.

  FIG. 11 is a block diagram showing an example of the configuration of the signal processing system of the mobile phone 1. The CPU 101 and the memory 102 are composed of, for example, an IC, and function as a control unit that performs predetermined calculations based on signals from various units such as the operation unit 7 and controls various units such as the image processing unit 103.

  The communication processing unit 104 is configured to include a high-frequency circuit, and modulates various data such as audio data and image data processed by the CPU 101 to perform wireless communication using radio waves, via the antenna member 26. Send. Further, the communication processing unit 104 demodulates a signal received via the antenna 105 and outputs the demodulated signal to the CPU 101.

  The sound processing unit 106 converts sound data from the CPU 101 into sound signals and outputs the sound signals to the speaker 107 for calling and the speaker 109 for notification and music reproduction. The acoustic processing unit 106 converts the acoustic signal from the microphone 108 into acoustic data and outputs the acoustic data to the CPU 101.

  The image processing unit 103 converts the image data from the CPU 101 into an image signal and outputs the image signal to the main display unit 6 and the sub display unit 110. Further, the imaging signal (image data) output from the camera module 111 is converted into image data of a predetermined format and output to the CPU 101.

  According to the above embodiment, as described with reference to FIG. 4, the antenna member 26 is temporarily fixed by the rod-like portion 44, the support portion 45, and the engaging portion 46, so that the antenna member 26 can be easily attached. . Further, as described in FIG. 8, the direction passing through the position between the engaging portion 46 and the edge portion 41 a of the first wall portion 41 in the extending direction of the rod-shaped portion 44 and perpendicular to the rod-shaped portion 44. Rotation fulcrums f1 and f2 are configured so as to be rotatable about an axis O1 passing through a position closer to the rib 33 than the rod-shaped portion 44 and parallel to the intersecting line of the first wall portion 41 and the second wall portion 42. Therefore, the antenna member 26 can be easily detached from the rear case 22 by rotating the antenna member 26.

  Since the rotation fulcrum f1 is configured by the ridge portion 55a of the stepped portion 55 and the rib 33 coming into contact with each other, the portion that reinforces the strength of the intersection between the first wall portion 41 and the second wall portion 42 is a rotation fulcrum. It can also be used as a component of f1. Further, the step portion 55 is sandwiched between the front case 21 and the rear case 22. Therefore, the antenna member 26 can be finally stably attached to the transmitter case 3.

  The rotation fulcrum f2 is configured by the ridge portion 56a of the extending portion 56 and the rib 35 abutting each other. Further, the extending portion 56 is sandwiched between the front case 21 and the rear case 22. Therefore, the extending part 56 contributes to both ease of removal of temporary fixing and final stable fixing to the transmission housing 3, and simplification of the configuration of the antenna member 26 is achieved. . Moreover, since the extension part 56 is extended to the rib 33 side from the 1st wall part 41, and is not on the same plane of the 1st wall part 41, clamping of the 1st wall part 41 and the extension part 56 of The antenna member 26 is more stably fixed by the clamping.

  Pulling out the rod-shaped portion 44 from the hole 43 by the rotation of the antenna member 26 is facilitated as the distance (rotation radius) between the hole 43 and the axis O1 increases and the locus of the hole 43 approaches a straight line from the arc. The Since the hole 43 of the antenna member 26 is formed by forming a groove in the first wall 41 so as to be as far away from the axis O1 as possible, the rod-shaped portion 44 can be easily pulled out.

  In the above embodiment, the rear case 22 is an example of the case and the first case of the present invention, the end wall portion 32 is an example of the case wall portion of the present invention, and the rib 33 is the rib of the present invention. The axis O1 is an example of a predetermined axis of the present invention, the rotation fulcrum f1 is an example of the first fulcrum of the present invention, the rotation fulcrum f2 is an example of the second fulcrum of the present invention, The part 55 is an example of the first contact part and the projecting part of the present invention, the extension part 56 is an example of the second contact part of the present invention, and the projecting part 37 is the first support projecting part of the present invention. The step 77 is an example of the second support protrusion of the present invention, and the rib 35 is an example of the extension protrusion of the present invention.

(Second Embodiment)
FIG. 12 is a diagram for explaining a problem to be solved in the second embodiment of the present invention. FIG. 12A is a method for forming the engaging portion 46 and the engaging hole portion 72 of the rear case 22. 12 (b) is a perspective view of a state different from FIG. 12 (a), FIG. 12 (c) is a plan view of FIG. 12 (b), and FIG. 12 (d) is a diagram. It is sectional drawing of the VIId-VIId arrow direction of 12 (b).

  The rear case 22 is formed by, for example, injection molding, and is formed by a mold disposed outside the rear case 22 (upward on the paper surface) and a mold disposed inside the rear case 22 (downward on the paper surface). It is formed by filling the cavity with resin. A partial mold 151 indicates a part of a mold disposed outside the rear case 22.

  The engaging portion 46 of the rear case 22 is formed so as to protrude in a direction orthogonal to the mold opening / closing direction (the vertical direction of the paper in FIG. 12D) at the rib 33 inside the rear case 22 (see FIG. 12). 10 (d)). Therefore, in order to form the engaging portion 46 using a mold, the first protrusion 152 of the partial mold 151 must be penetrated from the outside to the inside of the rear case 22. If the engagement portion 46 is formed by providing a recess in a direction orthogonal to the mold opening / closing direction on the mold disposed inside the rear case 22, the engagement portion 46 and the recess are engaged. Therefore, the rear case 22 cannot be released.

  As a result, a hole 81 (FIG. 12A) is formed in the rear case 22 at the position of the engaging portion 46. Further, as shown in FIG. 10 (d), when the lid 23 and the rear case 22 are fixed by the engagement hole 72 provided in the rear case 22, it is adjacent to the hole 81. An engagement hole 72 may be provided. The engagement hole 72 is formed by the second projecting portion 153 of the partial mold 151.

  The hole portion 81 and the engagement hole portion 72 are blocked by the lid body 23 and basically prevent intrusion of dust and water. However, when dust or water enters, dust or water enters the mobile phone 1 through the storage space 34 in which the antenna member 26 is disposed, which is not preferable. Therefore, in the second embodiment, in addition to the configuration of the first embodiment, a configuration for preventing entry of dust and water from the hole 81 and the engagement hole 72 is added.

  FIG. 13A is a perspective view showing a part of the antenna member 26, and FIG. 13B is a perspective view showing a part of the inner side of the rear case 222 of the second embodiment. 14 (a) is a plan view of the rear case 222 of the second embodiment, and FIG. 14 (b) is a cross-sectional view in the direction of arrow XIIb-XIIb in FIG. 14 (a). c) is a cross-sectional view in the direction of arrows XIIc-XIIc in FIG. 14A, FIG. 14D is an enlarged view of region c in FIG. 14B, and FIG. FIG. 15 is an enlarged view of a region d in FIG.

  The antenna member 26 is the same as that of the first embodiment. The rear case 222 is substantially the same as the rear case 22 of the first embodiment, but differs from the first embodiment in that ribs 236 are provided as shown in FIG.

  The rib 236 protrudes from the back surface portion 31 of the rear case 22 to the front case 21 side, and includes a first rib 236a, a second rib 236b, and a first rib 236c. The 1st rib 236a partitions the storage space 34 into the area | region 34b by the side of the edge part in which the hole part 81 and the engagement hole part 72 are arrange | positioned, and the area | region 34a by the side of the center. The second rib 236 b is provided on the support portion 45 and extends along the end wall portion 32. The third rib 236c partitions the storage space 34 into a region 34b and a region 34c on the end side of the region 34b. The third rib 236c is continuous with the protrusion 37 with which the tip surface of the screw boss 27 of the front case 21 abuts.

  An upper end surface R6 of the rib 236 shown hatched in FIG. 13B is in contact with a surface R7 of the stepped portion 55 of the antenna member 26 shown hatched in FIG.

  Accordingly, the first rib 236a prevents dust and water from entering the region 34a (see also FIG. 14E). The second rib 236b prevents dust and water from entering the front case 21 and the like via the end wall portion 32 (see also FIG. 14D). The third rib 236c prevents dust and water from entering the region 34c (see also FIG. 14E).

  The upper end surface R6 includes the region R3 illustrated in FIG. 3, and the surface R7 includes the region R4 illustrated in FIG. The rib 236 can also be provided on the rear case 22 side of the antenna member 26.

  In the second embodiment, the back surface portion 31 is an example of the facing surface portion of the present invention, the hole portion 81 is an example of the opening portion of the present invention, and the rib 236 is an example of the shielding rib of the present invention.

  The present invention is not limited to the above embodiment, and may be implemented in various aspects.

  The present invention can be applied to any device that performs at least one of reception and transmission by radio, and the application range is not limited to a mobile phone. For example, the present invention may be applied to notebook computers and PDAs.

  Any of the case wall and the rib forming the antenna storage space may be members that are generally opposed to each other. For convenience, the names of the case wall and the rib are merely different from each other, and the case wall and the rib are not limited to the case outer peripheral surface and the rib inside the case, respectively. For example, the case wall portion may be constituted by a rib provided inside the case, or the rib facing the case wall portion may be constituted by a case outer peripheral surface.

  The rotation fulcrum is not limited to one constituted by a ridge portion of the antenna member as long as a portion having an acute angle of at least one of the antenna member and the case is in contact with the other member. The edge of the rib of the case may be in contact with the flat portion of the antenna member to form a fulcrum.

  In addition, from this application, invention of the portable radio device which provided the shielding rib which does not presuppose rotating and removing an antenna member can be extracted.

1 is an external perspective view showing a mobile phone according to a first embodiment of the present invention in an open state. The disassembled perspective view of the transmission housing | casing of the mobile telephone of FIG. The figure explaining the outline | summary of the attachment method to the rear case of the antenna member in the mobile telephone of FIG. The conceptual diagram explaining the method of temporarily fixing the antenna member to the rear case in the mobile telephone of FIG. FIG. 2 is an external perspective view of an antenna member of the mobile phone in FIG. 1. The top view which shows the rear case and antenna member of the mobile telephone of FIG. The figure explaining the procedure of temporarily fixing the antenna member to the rear case in the mobile phone of FIG. The figure explaining the procedure which removes the antenna member temporarily fixed to the rear case in the mobile telephone of FIG. The perspective view which shows the progress in the middle of removing the antenna member temporarily fixed in the mobile telephone of FIG. 1 from a rear case. The figure explaining the method of finally fixing an antenna member with respect to a transmission housing | casing in the mobile telephone of FIG. The block diagram which shows an example of a structure of the signal processing system of the mobile telephone of FIG. The figure explaining the subject of the 2nd Embodiment of this invention. The perspective view which shows the rear case of the 2nd Embodiment of this invention. The top view and sectional drawing which show the rear case of the 2nd Embodiment of this invention.

Explanation of symbols

22 ... rear case, 32 ... end wall (case wall), 33 ... rib, 41 ... first wall, 42 ... second wall, 52 ... antenna element, 26 ... antenna member, 44 ... rod-shaped part, 43 ... hole, 45 ... support, 46 ... engagement part, 48 ... engaged part, O1 ... shaft, f1 ... rotation fulcrum (first fulcrum), f2 ... rotation fulcrum (second fulcrum), 55 ... step Part (first contact part), 56... Extension part (second contact part).

Claims (7)

A first wall portion and a second wall portion, which are provided in the case and the ribs provided in the case and perpendicular to each other to form a cross-section L-shape, between the ribs facing the case wall portion. An antenna member having at least an antenna element on the first wall portion is inserted from the second wall portion side so that the first wall portion faces the case wall portion,
A rod-shaped part provided in the case and parallel to the case wall part is inserted into a hole provided in the second wall part, and the support part provided in the case allows the The surface opposite to the extending direction of the rod-shaped portion is supported at a position closer to the first wall portion than the rod-shaped portion, and the engaging portion provided on the rib is the surface of the second wall portion. The second wall portion is detached from the rod-like portion by engaging the engaged portion provided at the end opposite to the first wall portion in the opposite direction to the extending direction of the rod-like portion. An antenna mounting structure for attaching the antenna member to the case,
The antenna member is
Between the engaging portion and the edge of the first wall opposite to the second wall, between the rod-shaped portion and the rib, and It is configured to be rotatable around a predetermined axis parallel to the intersecting line of the wall portion and the second wall portion,
A first abutting portion that abuts in the direction of the rib from the rod-shaped portion to the case so as to constitute a first fulcrum;
A second abutting portion that abuts against the case in the direction from the distal end side to the root side with respect to the case so as to constitute a second fulcrum;
Antenna mounting structure equipped with. The first contact portion is a projecting support portion formed on an inner angle side of the first wall portion and the second wall portion,
The said protrusion part contact | abuts in the direction orthogonal to the said rod-shaped part with respect to the said rib, and comprises the said 1st fulcrum by at least one of the edge part of the said protrusion part and the edge part of the said rib. Antenna mounting structure. The second contact portion extends from at least one of the first wall portion and the second wall portion in the intersecting line direction, and the first wall portion is more than the second wall portion. Extending part located on the edge side of
The case is provided with an extension protrusion for projecting in the extension direction of the rod-like part from the second wall part between the case wall part and the rib of the case,
The antenna attachment according to claim 1, wherein the extension portion contacts the extension portion protrusion in a direction perpendicular to the rod-like portion, and the second fulcrum is configured by an edge portion of the extension portion. Construction. The hole portion is provided adjacent to the first wall portion, and a portion of the hole portion on the first wall portion side is formed by a groove portion formed in the first wall portion. Item 2. The antenna mounting structure according to Item 1. Between the case wall portion provided in the first case and the rib provided in the first case and opposed to the case wall portion, a first wall portion and a first wall portion forming a cross-sectional L-shape orthogonal to each other An antenna member having two wall portions and having an antenna element at least on the first wall portion is inserted from the second wall portion side so that the first wall portion faces the case wall portion. ,
A rod-like part provided in the first case and parallel to the case wall part is inserted into a hole provided in the second wall part, and a support part provided in the case allows the second wall part to Among these, the surface opposite to the extending direction of the rod-shaped portion is supported at a position closer to the first wall portion than the rod-shaped portion, and the engaging portion provided on the rib is the second wall portion. From the rod-shaped portion of the second wall portion, the engaged portion provided at the end portion on the opposite side of the first wall portion is engaged with the opposite side of the extending direction of the rod-shaped portion. Prevent omission,
A portable wireless device that covers the antenna member inserted between the case wall and the rib and covers the second case, and the first case and the second case are combined to form a housing,
The first case is provided with a first support protrusion capable of supporting a portion of the second wall portion that does not intersect the first wall portion,
The second case is provided with a second support protrusion that protrudes toward the first case,
By combining the first case and the second case, the first wall portion is sandwiched between the support portion and the second case, and the second wall portion is the first support protrusion. And a portable wireless device sandwiched between the second support protrusion. Between the case wall portion provided in the first case and the rib provided in the first case and opposed to the case wall portion, a first wall portion and a first wall portion forming a cross-sectional L-shape orthogonal to each other An antenna member having two wall portions and having an antenna element at least on the first wall portion is inserted from the second wall portion side so that the first wall portion faces the case wall portion. ,
A rod-like part provided in the first case and parallel to the case wall part is inserted into a hole provided in the second wall part, and a support part provided in the case allows the second wall part to Among these, the surface opposite to the extending direction of the rod-shaped portion is supported at a position closer to the first wall portion than the rod-shaped portion, and the engaging portion provided on the rib is the second wall portion. From the rod-shaped portion of the second wall portion, the engaged portion provided at the end portion on the opposite side of the first wall portion is engaged with the opposite side of the extending direction of the rod-shaped portion. Prevent omission,
A portable wireless device that covers the antenna member inserted between the case wall and the rib and covers the second case, and the first case and the second case are combined to form a housing,
The antenna member has an extending portion extending from the end in the intersecting line direction of at least one of the first wall portion and the second wall portion to the rib side with respect to the first wall portion. Have
By connecting the first case and the second case, the first wall portion is sandwiched between the support portion and the second case, and the extension portion is connected to the first case and the second case. A portable radio that is sandwiched between the case and the case. A position of the first case facing the second wall portion is a position sandwiched between the case wall portion and the rib and overlaps with the engaging portion when viewed from the second case. An opening is formed in
At least one of the facing surface portion and the second wall portion is provided with a shielding rib that is surrounded by the facing surface portion, the second wall portion, the case wall portion, and the rib and closes the space including the opening. The portable wireless device according to claim 5 or 6.

Images